Swansea Astronomical Society Blog

Saturday, April 19, 2014

 

The Sun in white light

A Panasonic Lumix DMC-FZ72 bridge camera, fitted with a Baader solar filter, was mounted on a CG5 equatorial mount, set to f/5.9, ISO 100, 1/1600s exposure and maximum zoom of 60x. 64 images were captured in rapid succession in burst mode, 3 images at a time and stacked in Registax. Click on an image to get a larger view:


Steve Wainwright
 

84% waning, gibbous Moon

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on a Merlin AZ mount, set to f/5.9, ISO 100, 1/200s exposure and maximum zoom of 60x. 42 images were captured of the Moon, 3 at a time in burst mode, and stacked in Registax 5. Click on the image to get a larger view:


Steve Wainwright

Friday, April 18, 2014

 

Ursa Major and other constellations shot with a bridge camera

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on an equatorial mount and set to starry night mode with 60s exposures. The images were captured in this mode at ISO 100 and  f/2.8. Six image were captured of the Plough at minimum zoom and stacked in Registax 5. The resulting image was post processed in Photoshop to produce the final image. Click on the image to get a larger view:


Gemini with Jupiter and Auriga over the rooftops, with Orion setting.

Steve Wainwright
 

The Sun in White light with a bridge camera and a chromosphere image of combined H-alpha and Ca K-line data

A Panasonic Lumix DMC-FZ72 bridge camera, fitted with a Baader solar filter, was mounted on a CG5 equatorial mount, set to f/5.9, ISO 100, 1/1600s exposure and maximum zoom of 60x. 210 images were captured in rapid succession in burst mode, 3 images at a time. The best 207 images were stacked in Registax 5. Click on an image to get a larger view:



Note that AR2042, the sunspot at the top left of the image has a very bright centre.

An Opticstar P-130M monochrome, CMOS camera was placed at the prime focus of a Solarmax ll 60 BF15 H-alpha scope.  AVIs were captured and stacked in Registax 5.

The process was repeated using a Ca K-line scope. The resulting images were registered and merged to produce a chromosphere image of the solar disk, showing features at both ends of the spectrum:



Steve Wainwright
 

91% waning, gibbous Moon

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on an equatorial mount, set to f/5.9, ISO 100, 1/320s exposure and maximum zoom of 60x. 314 images were captured of the Moon, 3 at a time in burst mode, and the best 183 were stacked in Registax 5. Click on the image to get a larger view:


Steve Wainwright

Thursday, April 17, 2014

 

Drawings of sunspots and the globular cluster M3

A 10" SCT was used to make these drawings. For the sunspots, the scope, fitted with a solar filter, was stopped down to 1/3. Click on an image to get a larger view:



M3

Jim Startup

Wednesday, April 16, 2014

 

The Iris Nebula

An Altair Wave 102, SX H694 ccd camera was used with the following setup: LRGB filters, 5 minute subs. 6 luminance, 5 red, 4 green and 6 blue, luminance 1x1 binning, rgb 2x2 binning. The imaging was guided with a DSIpro and an Altair finder/guider. Click on the image to get a larger view:


Anne Startup
 

The Sun in white light

A Panasonic Lumix DMC-FZ72 bridge camera, fitted with a Baader solar filter, was mounted on a CG5 equatorial mount, set to f/5.9, ISO 100, 1/2000s exposure and maximum zoom of 60x. 279 images were captured in rapid succession in burst mode, 3 images at a time. The images were stacked in Registax 5. Click on the image to see it full size:



Sunspots, faculae, limb darkening and granulation can be seen in this image.

Steve Wainwright
 

Flare in AR2036 seen in H-alpha light and other H-alpha and Ca K-line images

A DMK21AS camera was placed at the prime focus of a Solarmax ll 60 BF15 H-alpha scope and a 5000 frame AVI was captured at 14-30h BST. The animation of the active region AR2036 can be seen to develop a flare which persisted for several minutes. The flare increased in brightness over about 3 minutes:



The active regions were imaged as a mosaic of 4 overlapping zones using a CEMAX x 2 Barlow. The image has been colourised to represent the part of the spectrum being used. Click on an image to get a larger view:



Four overlapping zones were used to image the whole disk in H-alpha light, using 5000 frame AVIs per zone and a Ca-K PST was used to do the same thing in Ca K-line light. Click on an image to get a larger view:

H-alpha light (656.3nm)



Ca K-line light (393.4nm)



The two images were blended to produce an image showing the features revealed at each end of the spectrum: (393.4nm + 656.3nm)



Steve Wainwright

Tuesday, April 15, 2014

 

An interesting transit of the H-alpha Sun

A Lumenera LU075 camera, fitted with a 0.5 focal reducer was placed at the prime focus of a Lunt LS60 H-alpha telescope, mounted on a I-Optron AZ mount. An AVI was captured at 60fps and a shutter speed of 1.33ms. There were thin, high level clouds conspiring to spoil the imaging. However, an interesting transit took place that made the session worthwhile:


Derek Francis
 

High definition Sun in white light with a bridge camera

A Panasonic Lumix DMC-FZ72 bridge camera, fitted with a Baader solar filter, was mounted on a CG5 equatorial mount, set to f/5.9, ISO 100, 1/2000s exposure and maximum zoom of 60x. 240 images were captured in rapid succession in burst mode, 3 images at a time. The images were stacked in Registax 5. Click on the image to see it full size:


The new sunspot group AR2036 (the lowest in the image), is growing rapidly and has the potential to produce flares. Sunspots, faculae and granulation are all visible in this image.

Steve Wainwright
 

Solar disk in H-alpha light and a Full Moon

An Opticstar P-130M monochrome, CMOS camera was placed at the prime focus of  A solarmax ll 60 BF15 H-alpha scope. 5000 AVI frames were captured and stacked in Registax 5. Click on an image to get a larger view:

Sunspots, page and filaments are visible on the solar disk.

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on an equatorial mount, set to f/5.9, ISO 100, 1/500s exposure and maximum zoom of 60x. 204 images were captured of the Full Moon, 3 at a time in burst mode, and then stacked in Registax 5:


Steve Wainwright
 

Mars and the full Moon

A hand-held Canon Powershot SX270 HS camera was used to capture these images of the full Moon and Mars:



Colin Miles

Sunday, April 13, 2014

 

98% waxing, gibbous Moon with an equatorial mounted Bridge camera

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on an equatorial mount, set to f/5.9, ISO 100, 1/500s exposure and maximum zoom of 60x. 201 images were captured of the Moon, 3 at a time in burst mode, and then stacked in Registax 5. Click on the image to get a larger view:



Mounting the camera on an equatorial mount eliminated image rotation and many more images could be captured and stacked than is possible with an AZ mount. This image shows lots of detail at full size.

Steve Wainwright
 

The Sun in White light with a Bridge camera

A Panasonic Lumix DMC-FZ72 bridge camera, fitted with a Baader solar filter, was mounted on an equatorial mount, set to f/5.9, ISO 100, 1/2000s exposure and maximum zoom of 60x.


 Sixty images were captured of the Sun, 3 at a time in burst mode, and then stacked in Registax 5. Click on the image to get a larger view:



Sunspots, limb darkening, faculae and granulation can all be seen in this image.

Steve Wainwright
 

95% waxing, gibbous Moon

A Panasonic Lumix DMC-FZ72 bridge camera was mounted on a Merlin auto-tracking mount, set to f/5.9, ISO 100 and 1/640s exposure and maximum zoom of 60x. Twenty four images were captured of the Moon, 3 at a time in burst mode and then stacked in Registax 6. Click on the image to get a larger view:


Steve Wainwright

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